We visited this hotel for a birthday weekend in London. Make sure you check what engineering works are taking place on the Tube before booking, both the circle and district lines were down, but that is obviously not the hotel's fault!
Reception area and check-in was smooth, given a nice cookie on arrival which was good. Room view was a bit poor, but the room was good, comfy bed, powerful shower.
SkyLounge bar was impressive when we saw it, but it would have been good if the hotel offered resident perks, such as special offers or a free drink within a certain specification. It is a great venue and just needs to be utilised more.
Overall an excellent few days, maybe just offer that bit 'extra'.